Like this:

How to read reviews of the hospital you are going to do your clinical attachment (Hospitation) in? Or even your residency?

The following website is in German: http://www.pj-ranking.de/ (PJ= Praktisches Jahr = Internship year). In it, you can search for reviews by interns of hospitals in which they did their internship. This probably gives an idea about the hospital of your choice. In addition, you can search for reviews of hospitals based on specialty.